Definition
Key length is the length of cryptographic keys, measured in bits, which determines the strength and security of the encryption algorithm. Choosing a key length depends on specific security requirements and encryption algorithms.
Common Key Length Examples in Cybersecurity
- RSA encryption: In asymmetric encryption systems such as RSA, the key length is directly linked to the security level of the public and private key pairs.
- AES encryption: This encryption has varied key lengths, such as 128-bit, 192-bit, and 256-bit. Clearly, a 256-bit AES key is more secure than a 128-bit key.
- Wireless networks: Key lengths IN Wi-Fi networks are used in WPA2 and WP3 protocols to ensure secure communications.